There seems to be a error in Bud's age. In the first season he mentions he is in fifth grade somewhere which I believe in USA is around ten or 11 years old.

Then in the fifth season he has his 18th birthday. Which is four years from the first season so he should be 15 or 16. ANyone else notice this mistake.

Also I have been wondering this for a while now.
What is the eposide where Als friend gets a sex change operation and plays American Foot ball. his name is chad or something and they wonder if Chad has changed since high school . Al says Chad never changes then Chad walks in the door after a sex change operation and says Hi remember me I am Chad.

I guess they made Bud younger than he was in season 1 due to DF looking younger than his age. I don't think his age was mentioned again until A Taxing Problem in season 4 when he said he was 15 (DF's real age at the time.)

firstborntriplet wrote:
Anyways it seems like Bud had a growth sprout during season 2 and 3 or something like that and he would not pass for 12 in Season 3. Also did anyone notice his voice was changing in season 2 or 3.